GitHub Outage History

We are investigating reports of degraded performance for Copilot AI Model Providers

We are seeing increased error rates from specific upstream AI Model Providers

We are experiencing degraded availability for the Fable 5 model in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider. While we work with them to resolve the issue, we recommend choosing another model or selecting 'Auto' to continue using Copilot.

We are investigating reports of degraded performance for Copilot AI Model Providers

We are experiencing degraded availability for the GPT-5.6 Luna model in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider. While we work with them to resolve the issue, we recommend choosing another model or selecting 'Auto' to continue using Copilot

We keep working with our upstream model provider, and are observing recovery. We continue monitoring to ensure stability.

The issues with our upstream model provider have been resolved, and GPT-5.6 Luna is once again available in Copilot products and IDE surfaces. We will continue monitoring to ensure stability, but mitigation is complete.

We are investigating reports of degraded performance for Copilot AI Model Providers

We are experiencing degraded availability for the Claude Fable 5 model in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider. While we work with them to resolve the issue, we recommend choosing another model or selecting 'Auto' to continue using Copilot.

The issues with our upstream model provider have been resolved, and Claude Fable 5 is once again available in Copilot products and IDE surfaces. We will continue monitoring to ensure stability, but mitigation is complete.

We are investigating reports of degraded availability for Actions

We are investigating an issue affecting GitHub Actions. Some customers may experience timeouts or failures with runner registration and workflow runs may be delayed during startup. Our team is actively working to mitigate the impact by scaling capacity across additional infrastructure.

We are investigating reports of impacted performance for some GitHub services.

This is just a test of our systems. Please ignore.

We are investigating reports of degraded performance for API Requests

We are investigating reports of degraded availability for Actions

We are experiencing issues with GitHub Actions that are causing workflow run failures and delays for some users. Our engineering team is actively investigating the infrastructure issue and working to restore full functionality.

We have applied a mitigation for the infrastructure issue affecting GitHub Actions. Workflow run failures and delays are improving but not yet fully resolved. Our engineering team continues to work on restoring full functionality across all affected infrastructure.

We are investigating reports of degraded availability for Copilot AI Model Providers

We are experiencing degraded availability for the GPT-5.2, GPT-5.3-Codex, GPT-5.4, GPT-5.4 Mini, GPT-5.6 Sol, GPT-5.6 Terra, and GPT-5.6 Luna models in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider. While we work with them to resolve the issue, we recommend choosing another model or selecting 'Auto' to continue using Copilot.

We are investigating reports of degraded performance for Pull Requests

We are investigating errors creating pull requests

Pull Requests is experiencing degraded availability. We are continuing to investigate.

We have applied a mitigation and are monitoring for recovery

We are investigating reports of degraded performance for Actions

Approximately 3% of GitHub Actions runs on GitHub-hosted runners are experiencing run start delays exceeding 5 minutes. A small portion of these runs may fail after extended delays. We have identified the cause and are working on a mitigation.

The degradation affecting Actions has been mitigated. We are monitoring to ensure stability.

We are investigating reports of impacted performance for some GitHub services.

We are investigating reports of intermittent SSH authentication failures affecting connections that use deploy keys. Customers may experience failed SSH connections when interacting with repositories via deploy keys. Our engineering team is actively investigating the root cause and working toward resolution.

We have identified a recent code change as a potential cause of the SSH authentication failures affecting deploy key connections. Our engineering team is rolling back this change. Customers using deploy keys for SSH access to repositories may continue to experience intermittent connection failures until the fix is deployed.

We are investigating reports of degraded performance for Copilot AI Model Providers

We are investigating GPT Codex 5.3 performance.

We identified that an upstream provider is returning errors for GPT 5.3 Codex requests, causing some users to experience failed or interrupted responses. Traffic is being automatically rerouted to mitigate impact. We are working with the upstream provider to resolve the underlying issue. We recommend using a different model at this time while we resolve the problem.

The upstream provider continues to return intermittent errors for GPT 5.3 Codex requests. Some users may experience failed or interrupted responses when using this model. Traffic continues to be automatically rerouted to reduce impact, and we are actively working with the upstream provider on a resolution. In the meantime, selecting an alternative model will avoid disruption.

We are seeing signs of sustained recovery from the upstream provider for GPT 5.3 Codex requests. Requests are succeeding as expected. We are awaiting confirmation from the provider that the issue is fully mitigated before resolving this incident.

We are investigating reports of impacted performance for some GitHub services.

We are aware of degraded REST API availability and are investigating

API Requests is experiencing degraded performance. We are continuing to investigate.

We are continuing to investigate an issue causing approximately 35% of REST API requests to fail. Based on our current understanding, requests are not consistently reaching the application layer, resulting in failed requests returning HTML responses instead of the expected API response format. We are actively investigating the issue and will provide another update as soon as more information is available.

We are investigating reports of degraded performance for Copilot AI Model Providers

We are experiencing degraded availability for the Claude Fable 5 model in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider. While we work with them to resolve the issue, we recommend choosing another model or selecting 'Auto' to continue using Copilot.

We are investigating reports of degraded performance for Webhooks

Between 15:17 and 15:27 UTC, an ongoing deployment had an unintended side effect where webhook delivery states were not persisted in all cases, even when deliveries were accepted and processed. Customers may notice missing webhook deliveries in the UI, and these deliveries will not be retryable. Impact resolved automatically once the deployment completed.

We are investigating reports of degraded availability for Actions

Pages is experiencing degraded performance. We are continuing to investigate.

We are investigating reports of degraded performance for Pages

We are investigating reports of slow and failing Pages deployments. Access to Pages is unaffected.

Pages deployment latency is recovering. The team continues working toward full mitigation and a return to nominal state.

We are investigating reports of degraded performance for Copilot

We have identified the likely reason for the delays and are working on a solution.

A fix for the delayed resets is currently being deployed.

We are investigating reports of impacted performance for some GitHub services.